<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="js/vue.js"></script>
    <style>
        .box{
            width: 500px;
            height: 350px;
            border: 1px solid #000;
        }
    </style>
</head>
<body>
    <div class="box" id="app">
        <h1>简单计算器</h1>
        <div>
            <span>数值A:</span>
            <span>
                <input type="text" v-model="a"> 
            </span>
        </div>
        <div>
            <span>数值B:</span>
            <span>
                <input type="text" v-model="b">
            </span>
        </div>
        <div>
            <button v-on:click="handle">计算</button>
        </div>
        <div>
            <span>计算结果：</span>
            <span v-text="result"></span>
        </div>
    </div>
    <script>
        var vm = new Vue({
            el:'#app',
            data:{
                a:'',
                b:'',
                result:''
            },
            
            methods:{
                handle:function(){
                    this.result = parseInt(this.a) + parseInt(this.b)
                }
            }
        });
    </script>
</body>
</html>